The RAM 2500/3500 Regular Cab I (facelifted in 2013) represented a significant update to the heavy-duty truck lineup from RAM, continuing a legacy of robust American pickup trucks. Specifically, the 3500 model equipped with the 6.7-liter High Output (HO) Cummins turbocharged diesel engine paired with an automatic transmission, produced from 2013 to 2018, was a popular configuration for those needing substantial towing and hauling capability. This variant occupied a premium position within the 2500/3500 range, offering a balance of power, refinement, and work-ready durability. It was primarily marketed towards commercial users, farmers, and individuals requiring a heavy-duty truck for frequent towing of large trailers, livestock, or equipment.
Technical Specifications
| Brand | RAM |
| Model | 2500/3500 |
| Generation | 2500/3500 Regular Cab I (facelift 2013) |
| Type (Engine) | 3500 6.7 HO Cummins TD (385 Hp) Automatic |
| Start of production | 2013 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 2-3 |
| Doors | 2 |
| Fuel Type | Diesel |
| Weight-to-power ratio | 8.3 kg/Hp, 120.5 Hp/tonne |
| Weight-to-torque ratio | 2.8 kg/Nm, 360.6 Nm/tonne |
| Power | 385 Hp @ 2800 rpm |
| Power per litre | 57.5 Hp/l |
| Torque | 1152 Nm @ 1700 rpm (849.67 lb.-ft. @ 1700 rpm) |
| Maximum engine speed | 3200 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | ETK |
| Engine displacement | 6690 cm3 (408.25 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 107 mm (4.21 in.) |
| Piston Stroke | 124 mm (4.88 in.) |
| Compression ratio | 16.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | OHV |
| Engine oil capacity | 11.4 l (12.05 US qt | 10.03 UK qt) |
| Coolant capacity | 21.4 l (22.61 US qt | 18.83 UK qt) |
| Kerb Weight | 3195 kg (7043.77 lbs.) |
| Max. weight | 5035 kg (11100.27 lbs.) |
| Max load | 1840 kg (4056.51 lbs.) |
| Trunk (boot) space – maximum | 2115 l (74.69 cu. ft.) |
| Fuel tank capacity | 121 l (31.96 US gal | 26.62 UK gal) |
| Permitted trailer load with brakes (12%) | 8069 kg (17789.1 lbs.) |
| Length | 5852 mm (230.39 in.) |
| Width including mirrors | 2004 mm (78.9 in.) |
| Height | 1953 mm (76.89 in.) |
| Wheelbase | 3556 mm (140 in.) |
| Front track | 1742 mm (68.58 in.) |
| Rear (Back) track | 1925 mm (75.79 in.) |
| Minimum turning circle | 13.7 m (44.95 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 6 gears, automatic transmission Aisin |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Leaf spring |
| Front brakes | Disc |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Tires size | 265/70 R17 118; 275/70 R18 118T; 285/60 R20 115T |
| Wheel rims size | 8J x 17 ET42; 8J x 18 ET43; 8J x 20 ET55 |
Introduction
The 2013-2018 RAM 2500/3500 Regular Cab, particularly the 3500 variant with the 6.7-liter HO Cummins diesel and automatic transmission, represented a significant step forward in heavy-duty truck capability and refinement. Built on the foundation of the previous generation, the facelift brought updated styling, improved interior materials, and enhanced technology. This truck was designed to be a workhorse, capable of handling demanding tasks while providing a relatively comfortable driving experience. The Regular Cab configuration, with its two or three-seat layout, catered to those prioritizing functionality and cost-effectiveness over passenger space. It was a direct competitor to offerings from Ford (F-250/F-350) and General Motors (Chevrolet Silverado/GMC Sierra 2500/3500).
Powertrain & Engine Architecture
The heart of this RAM 3500 is the 6.7-liter Cummins inline-six diesel engine, designated as the HO (High Output) version. This engine, identified by the ETK code, produces 385 horsepower at 2800 rpm and a massive 1152 lb-ft of torque at 1700 rpm. The engine utilizes a diesel commonrail fuel injection system, delivering highly pressurized fuel directly into the cylinders for efficient combustion. The engine features an overhead valve (OHV) valvetrain, known for its durability and simplicity. A turbocharger and intercooler are employed to increase power and efficiency by forcing more air into the engine. The automatic transmission is a robust 6-speed unit sourced from Aisin, specifically designed to handle the high torque output of the Cummins engine. This transmission features electronically controlled shifting and a tow/haul mode for optimized performance when towing heavy loads.
Driving Characteristics
The 6.7-liter HO Cummins with the Aisin automatic delivers a driving experience focused on capability rather than outright speed. While 385 horsepower is substantial, the real strength lies in the immense 1152 lb-ft of torque. This provides effortless acceleration, even when heavily loaded or towing. The Aisin transmission shifts smoothly and decisively, providing ample gear ratios to keep the engine in its optimal power band. Compared to the standard output Cummins or the gasoline engine options, this variant offers significantly more towing capacity and a more relaxed driving experience under heavy loads. While a manual transmission was available on other trims, the automatic provides ease of use, particularly in stop-and-go traffic or challenging terrain. The truck’s substantial weight and long wheelbase contribute to a stable and planted feel on the road.
Equipment & Trim Levels
The RAM 2500/3500 Regular Cab I (facelift 2013) offered a range of trim levels, with the 3500 HO Cummins Automatic typically found in mid-to-high level configurations like SLT, Laramie, or Limited. Standard features generally included air conditioning, power windows and locks, a basic audio system, and vinyl upholstery. Higher trims added features such as leather upholstery, heated seats, a premium audio system, navigation, and a rearview camera. Optional extras included a trailer brake controller, upgraded suspension packages, and various appearance packages. The interior design was functional and durable, with a focus on providing a comfortable workspace for the driver.
Chassis & Braking
The chassis of the RAM 3500 is built around a heavy-duty frame designed to withstand significant loads. The front suspension utilizes an independent multi-link setup for improved ride quality and handling. The rear suspension employs a traditional leaf spring design, optimized for load-carrying capacity. Braking duties are handled by disc brakes on all four wheels, providing ample stopping power. An Anti-lock Braking System (ABS) is standard. The truck’s robust construction and heavy-duty components contribute to its exceptional towing and hauling capabilities.
Market Reception & Comparison
The RAM 2500/3500 with the 6.7-liter HO Cummins diesel and automatic transmission was well-received by critics and consumers alike. It was praised for its powerful engine, smooth-shifting transmission, and comfortable ride. Compared to the standard output Cummins, the HO version offered a noticeable increase in power and towing capacity. Fuel economy, while not a primary concern for heavy-duty truck buyers, was generally considered acceptable for the class. Reliability was also a strong point, with the Cummins engine known for its longevity. The RAM consistently ranked highly in comparison tests against its Ford and GM competitors, often lauded for its refined interior and comfortable ride.
Legacy
The 6.7-liter Cummins diesel engine, particularly in its HO configuration, has earned a reputation for exceptional durability and longevity. These engines are known to exceed 200,000 miles with proper maintenance. On the used car market, RAM 2500/3500 models from this era with the HO Cummins and automatic transmission command a premium price due to their proven reliability and capability. Regular maintenance, including oil changes and fuel filter replacements, is crucial for ensuring the long-term health of the engine and transmission. These trucks remain a popular choice for those needing a dependable and powerful heavy-duty pickup.
